<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

    <script type="text/javascript">
      //编写一个javaScript对象
      var user ={
          name:"cai",
          age:3,
          sex:"男"
  };
      //将js对象转换成json对象
      var json = JSON.stringify(user);
      console.log(json)
      console.log("=================")
      //将json对象转化为javaSript对象
      var obj=JSON.parse(json);
      console.log(obj)
    </script>
</head>
<body>





</body>
</html>